parse-events: Add pevent_event_filtered()

Add filter function pevent_event_filtered() to return true
if the event has a filter against it, and false otherwise.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

2 files changed, 24 insertions, 0 deletions

diff --git a/parse-events.h b/parse-events.h
index cc5af58..8e42947 100644
--- a/parse-events.h
+++ b/parse-events.h
@@ -586,6 +586,9 @@ int pevent_filter_add_filter_str(struct event_filter *filter,
 int pevent_filter_match(struct event_filter *filter,
                         struct record *record);
 
+int pevent_event_filtered(struct event_filter *filter,
+                          int event_id);
+
 void pevent_filter_free(struct event_filter *filter);
 
 #endif /* _PARSE_EVENTS_H */
diff --git a/parse-filter.c b/parse-filter.c
index d2f5c3b..98c31dd 100644
--- a/parse-filter.c
+++ b/parse-filter.c
@@ -942,6 +942,27 @@ static int test_filter(struct event_format *event,
 }
 
 /**
+ * pevent_event_filtered - return true if event has filter
+ * @filter: filter struct with filter information
+ * @event_id: event id to test if filter exists
+ *
+ * Returns 1 if filter found for @event_id
+ *   otherwise 0;
+ */
+int pevent_event_filtered(struct event_filter *filter,
+                          int event_id)
+{
+        struct filter_type *filter_type;
+
+        if (!filter->filters)
+                return 0;
+
+        filter_type = find_filter_type(filter, event_id);
+
+        return filter_type ? 1 : 0;
+}
+
+/**
  * pevent_filter_match - test if a record matches a filter
  * @filter: filter struct with filter information
  * @record: the record to test against the filter